Shuttle embroidering-machine.



J. GROETSGHEL. SHUTTLE EMBROIDBRING MACHINE.

APPLICATION FILED YBB. 4, 1913.

Patented Dec. 9, 1913.

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UNITED STATES PATENT OFFIQE.

JULIUS GROETSCHEL, OF PLAUEN, GERMANY.

SHUTTLE EMBROIDERING-IVIACHINE.

Application filed February 4, 1913.

To all whom t may concern Bc it known that I, JULIUS Gnon'rscnnr., a subject of the German Emperor, residing at Plauen, in Vogtland, in the Kingdom of Saxony, Germany, have invented certain new and useful Improvements in Shuttle Embroidering/lachines, of which the following is a specification.

The invention described below permits the production of certain kinds of embroideries, for which threads of different kinds are required to be used. I herewith state that I am perfectly aware that embroidery machines are already known with which work can be done with different threads upon the front side of a piece of embroidery. Those already-known embroidery machines are provided with two or three rows of needles. Each row of needles is threaded with one kind of thread, which threads differ from that kind of thread used for the other rows of needles. According to my invention the embroidery machine must have three rows of shuttles on the rear side. I do not mean to say that my machine, which has three rows of shuttles on the rear face of the embroidery, must also have several rows of needles on the front side. On the contrary there may also be only one single row of needles on the front side. If, however, there be both several rows of needles on the front surface, as well as several rows of shuttles on the back surface, then there can be produced several combinations and Variations of the embroidery pattern, and consequently a very 'great variety in the beauty of the pattern to be embroidered can thus be rendered possible. To put the matter briefly-I will not assert that my invention is intended for a certain kind of embroidery, as I leave it entirely to the option of anyone, who may use an embroidery machine built according to my invention, to produce on such said machine embroideries of the most varied type according to his own desire or requirements. In the present description I merely state what mechanical means can be used when it is desired to embroider, with three threads alternately, on the rear surface of a piece of embroidery.

Figure l shows a vertical cross section through the frame of a shuttle embroidery machine, viewed from the left side. Fig. 2 is an upright projection of the frame of the Specification of Letters Patent.

Patented Dec. 9,1 913.

Serial No, 746,185.

machine viewed from the front. In this Fig. 2 the iron beams (l, 2), which are shown in Fig. l, have been intentionally left out so as to permit of a clear view of the new device which has been attached to the beams (3, il). Fig. 3 shows the upper part, and Fig. l the lower portion, of those constructional parts whereby my invention is characterized. Figs. 3 and l* are repetitions to a larger scale of certain details of Fig. 2, because Fig. 2 is so small that the new device cannot be clearly viewed therein. Fig. 5 is a lateral view of Fig. 4, shown in vertical cross section. Fig. G, is a detail of a shuttle gripping fork 37, as seen in Fig. 5.

In the drawing I have shown only those few parts of an embroidery machine which are necessary to permit of a clear comprehension of my invention. I believe that I may venture to do this because, as is well known, an embroidery machine possesses very many andv very complicated mechanisms, which are well-known to every specialist who may read my specification.

The frame of the embroidery machine consists of vertical walls (5) and horizontal beams (l, 2, 3, t). The dotted line in Fig. l is intended to represent the em broidery tightly stretched in position. On the front surface of the emlnoidery (fr-.r) there are arranged the rows of needles (G, 7) while on the rear surface of the said embroidery there are, for each row of needles, three rows of shuttles (S, S', 8,) and (9, 9, 9).

In the drawing the needle and shuttles are shown in such a way that the row of needles (G) can work together with the row of shuttles (8). If it be intended that the needles (G) work together with the row of shuttles (8), then all three rows of shuttles are moved downward so that the row of shuttles (8) can come to take up that position shown in the drawing as occupied by the row of shuttles (8'). If, however, the needles (G) are to work together with the row of shuttles (8), then the shuttles must be moved upward to a corresponding extent.

During the embroidering, as is wellknown, the rows of shuttles must be alternately moved backward and forward right and left in the direction of the double arrow.

move, a slide on the rear side of said re- In testimony whereof I aIIiX my signature eeptaele and mvable horlzontally, fork-ke n presence of two witnesses.

drivers 0n sai slide aca ted to osol ate v around a joint and a sprnlf controlled but- JULUS GROIFSCHEL ton, which, when pressed, will aotuate means Vtnesses: to throw a shuttle through an aperture in JOSEPH MisnLnn, the shuttle receptacle. ROBERT H. Ninn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

